hi firsly, i have one projec that is clas library project (dll project). i have config file for this project an i am using appsetting section. until here no problem i wantto use this dll in a web application, when i adding my dll as a refferance , dll stars using config file of web aplicati...more >>

Hey, My C# just started doing something weird with imagelists. I have an Imagelist with about 5 icons in it, and it use to compile perfectly. But all the sudden, it gives me this error: "An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dl...more >>

I think the ability to set a pixel on a graphics surface ought to be straightforward and I tried to illict Dr. Guis opinion but he was too busy to respond. So I think he must agree with me but fears authority ;-} What do others think ? ? ? My original email and Dr. Gui's assistants reply is sh...more >>

I have a Java code that I want to convert it to C-sharp in order to put it in my ASP.NET web application. I used the JLCA (Java Language Conversion Assistant) for conversion, but it gave me many errors indicating that there are not matches in .NET for those Java classes!! The Java code is: ***...more >>

Hi all I am having a problem reading from a serial port, first of all I have now resorted to using the MSComm ActiveX control on my Windows Forms to provide me with the interface to my serial port. is there no other way to do this - it has to be simple or well explained because I'm still new to th...more >>

Bastrads. I want my money back. And time invested into crap. Whenever I ask something tricky, noone answers. Memory profilers shows that when I open and close a child window 10 times, in memory all 10 windows remain. I have turned off virtual ram to see if stupid .net would clean memory. But ...more >>

When this executes Win32.MessageBeep(BeepTypes.IconExclamation); (or any of the other beep types) nothing is heard... Any Ideas? ----------------------------------------------------------- using System; using System.Drawing; using System.Collections; using System.ComponentMod...more >>

I have an app that populates a treeview from a DB. I would like the UI to repaint during this potentially long operation, so I want to spawn a new thread to populate the list. The problem is how to update the treeview from the worker thread without violating the prime directive of Windows prog...more >>

I would be surprised if this hasn't been asked before. I tried a google search but could only turn up info on how to put scroll bars on a web datagrid. Any ideas on how to do this with windows forms?...more >>

It seems to me if you have a function like this public void blah() try { blah blah; } catch { blah de blah; } #code that executes whether there is an error or not# return; Then the code at the end will execute just as if it were in a finally bloc...more >>

Hi all, I'm creating a simple user control that has two properties that represent a range of valid integer values. For example: int minimum, maximum; public int Minimum { get { return mimimum; } set { minimum = value; } } public int Maximum { get { return maximum; } ...more >>

Hi, I've to add ( " ) double quote character to a string which I later save the string into a file? How can I add this character to a string in C#? 3 times double quote doesn't seem to work... Thanks... Özden ...more >>

Hello, can someone please give me a tip or two on the following problem: I have a system of linked objects which stores properties of on-screen drawn objects. When i select each object on the screen the application slowly over 10-20 seconds grows slower, and the computer runs out of memory so the...more >>

hi, I have two forms, how can i put a form on another form at a particular corrdinate, e.g. point(10, 10)..... form1.Location=??? Thanks! MAY ...more >>

> It also covers any value type with unique charactersitics that I'm not > thinking of or don't know of. Things like TypedReference or Nullable<T> in > 2.0 may or may not have special behaviour\treament that I don't know > of(those are just examples of value types that could potentially have ...more >>

Hello: I am a Forxpro developer trying to come up to speed in C#. I'm trying to do in C# what I do effortlessly in Foxpro, and that is to call a grid refresh method in the parent form from the child form. I have a customers form with a grid bound to a dataset, and a child form "Add Custo...more >>

I want to call the=20 DateAndTime.DatePart() Method in VB from C#, i have correctly added the reference to the VB = dll, etc... but when i call this function like this DateAndTime.DatePart(DateInterval.Weekday,DateTime.Now,FirstDayOfWeek.Sun= day,FirstWeekOfYear.Jan1) or DateAndTime.D...more >>

Form B needs to call a public method of Form A. How can form B get a reference to the instance of Form A using its name or any other method? Is there a collection of form instances that can be searched? -- Bill...more >>

Is there any way to display the RowState of each row in a computed column in the DataTable? -- Bill...more >>

Did you know..? There's a blog in MSDN.!! blogs.msdn.com But I don't know how I join and create blogs in blogs.msdn.com. please teach me. ...more >>

Hi I am drawing a room using a variety of transform matrices. Initially, I use ScaleTransform to apply the current zoom level to the drawing. Then, accordingly I might use RotateTransform and TranslateTransform when drawing things at an angle (such as text). However, after I use RotateTransform an...more >>

hi there, Could you please recommend some good book for UML design? I got one from Wrox but it doesn't help me much. Regards, Sokun ...more >>

I have an application that invokes a remote process that returns a (possibly empty) DataSet as the result, and the contents of this are then displayed in a DataGrid by setting the data source to reference the DataSet. I cannot figure out how to have the DataGrid automatically show the data itself...more >>

I am very interested in building some OBD II compliant automotive software and I was wondering if there were any OBD II .NET components available out there at this time and if so where? ...more >>

Rather than merge child menus, I would like for some common functionality between various MDI child forms to process an event fired from the main menu, depending on who is in focus. Is this doable? ...more >>

Hi, I am a very experienced C++ Win32 programmer using VS 7.1. Are there any recommendations for C# books that assume no prior C# knowledge, but will not require me to slog through a lot of novice stuff about OOP and basic programming techniques that I am already familiar with? Thanx ...more >>

i'm trying to call FormatMessage and supply some arguments for it= to substitute into the message string=2E i can get it to grab the= message, but i can't convince it to substitute the arguments=2E i've got the arguments in an ArrayList (though i started with= them in a byte array along th...more >>

Chaps, I'm looking for a brute force string search. I'd like to use it on a form and out the result of each 'pass' into a text box line. Cheers ...more >>

Hi I have GUI assembly which is loaded into a seprate Appdomain using AppDomain::Load method, after using it's function i unloaded the assembly by calling the AppDomain.UnLoad() method. But i can still use the UI components displayed earlier when i loaded the Assembly. How is this possible, it sh...more >>

Is it possible to create a database form an XSD schema? ...more >>

I want to include a database in an application, the application must be deployable with it's own database system and is basically used for storing records. Is this easy enough to build into an application? Doug. ...more >>

Hi, i need to read data from an Access Database. My problem is that all data have to be parsed or calculated so i'm looking for the fastest way. How to do that? Do i need a dataset or two ,first with raw data and the second with calculated data?But in this case how to pass raw data from a d...more >>

I made a program that generate random numbers and put it in a listbox when the user click go. The problem is: how can i made a button stop, to stop the method that is running??? []s... ...more >>

Hi If I set a proxy in IE to view a view site. My IP is 223.12.98.244 and the proxy IP is 202.156.87.179 Can Request.UserHostAddress trace 223.12.98.244? I use C# If not, how can I trace the IP of the user? I have a web application, I am afraid of being hacked and could not find the origin...more >>

Is there something wrogn with this syntax? It does not put in the padded characters. string hk="Assembly"; hk.PadRight(35,'-'); this.textBox1.Text=hk + "Test"; The output is AssemblyTest ...more >>

Hello. I've been testing basic remoting samples where I have a DLL, a server and a client. The server registers a channel and the type of the object (from the DLL). Then the client receives a object from the channel. My question is how to send objects (from the DLL also), and moreover, store o...more >>

Hi, I am using DirectoryEntry to access IIS properties. After searching MSDN, I get "The Internet Information Services (IIS), and WinNT providers do not currently support Count, so each will throw a NotSupportedException.", so that I cannot use following codes to enumrate properties. Dire...more >>

I am used to initilize vars with Null to mean undefined, but in c# even complex types such as DateTime are considered value-types so they cant be null. So far I have worked around the problem using values that are outside the normal working range of my programs or some other workaround, but in...more >>

Good Morning, I was looking for some feedback, guidance, input, comments, suggestions or just general thoughts on the following: For our internal development, I'm trying to create a general, reusable security framework that is very flexible. It would have to handle both Authentication and ...more >>

As the subject suggests, I have two questions about using COM objects in C#. I'm using two different objects, each of which is giving me a problem. The first object ... we'll call it AppXControl. Here's some Visual Basic 6 code I've written which gets the code connected to the COM object. Priva...more >>

Nicholas, After some research; I've concluded that an IExtenderProvider component should do the trick. Still have empirical work to do... // Martin Rosén-Lidholm To:"Martin R-L" <martin_rosenlidholm@msn.com> From:"Nicholas Paldino [.NET/C# MVP]" <mvp@spam.guard.caspershouse.com> Sub...more >>

How can I know if the processor is still used for an application or not Thx all.. Greg...more >>

Hello, Is there any way to determine which server answers an LDAP query? One that is not directed at a particular server that is. ie. DirectoryEntry oUser=new DirectoryEntry("LDAP://Domain/DC=Domain,DC=COM","","",AuthenticationTypes.Secure); Thanks, Bob ---------------------------...more >>

I have made a program which has an instillation of about 0.5 MB, and am now ready to put in online. The problem I have though is that if i try to run it on another computer it comes up with the message, "The application failed to initialize properly (0xc0000135). Click on OK to terminate the appli...more >>

Hello.. In the good old days where I programmed using wininet.dll, I did'nt need to do anything to retrieve a sourcecode from a secureed site eg. HTTPS - port 443. But in the new .NET it seems a lot more difficult, infact I dont seem to be able to solve a webrequest using SSL. How do I manage ...more >>

How can I create a form on a separate thread? FormA running on ThreadA FormB running on ThreadB TIA JB ...more >>

this.oleDbSelectCommand2.CommandText = "SELECT kitaab, waraq FROM shajra WHERE mahal = '" + comboBox1.SelectedItem.ToString() + "' ANDperi LIKE '%" + textBox4.Text.ToString() + "%'"; this.oleDbSelectCommand2.Connection = this.oleDbConnection1; this.oleDbDataAdapter2.Fill(dataSet2 , "mydata2"...more >>

I implemented the IEnumerator interface in some classes to enable the use of the foreach statement. As you probalbly know, the interface asks for the implementation of object IEnumerator.Curren bool IEnumerator.MoveNext() an void IEnumerator.Reset() The help to IEnumerator.MoveNext de...more >>

Hi, I would like to know is there's any method that can give me the quantity of virtual memory being used my C# application. I search in the System.Diagnostics namespace but the amount of memory that I get from the different counter has nothing to do with the virtual memory showned in the ...more >>

Hello friends, i am doing a project in C# which involves accessing funtions and structres from winpcap. so i would like some one to please help me to access the pcap_if structure in my C# program. i have tried doing it by DllImport but i am not able to do it. Please help me its very urgent....more >>

I'm trying to create Images/Bitmaps during runtime and converting them to icons so I can use them for the NotifyIcon class. I searched but couldn't find anything about this. I know all about creating images and editing them...it's the "getting the image to the tray" part that's getting me. ...more >>

Hello. How can I set input mask for TextBox in Windows Form? For example I want to mask (format) TextBox for inputing phone number like (999) 999-99-99. The TextBox must first show something like this: (___) ___-__-__ How can I do this? ...more >>

Hi, I'm writing a WinForms app in C# and would like to alter the button images on the toolbar depending on whether the user is using the WinXP theme or the Classic theme. Changing the image list is the easy bit, but does anyone have any code for detecting which theme is currently in use? An...more >>